A/C Help, suggestions needed

a friend has an 03 eclipse v6. his a/c was working fine last summer, but when it got warmer out, it wasn’t blowing cold air. we checked the charge, its good (right at 45 psi). the compressor and fans go on and off with the switch, but doesn’t seem to click back off on its own. also, the high pressure pipe doesn’t get hot, and the low pressure side doesn’t get cold. its still blowing warm air. i figure the system might be clogged somewhere, but was looking for other ideas and maybe a few suggestions as to how to unclog it. thanks in advance